Data list 1, drawing list and list of equipment and materials 2, water supply and drainage construction design description 3, water supply and drainage construction design legend 4, water supply and drainage general layout 5, water supply and drainage system diagram (I) 6, water supply and drainage system diagram (II) 7, water supply and drainage plan on the second floor of building A, 8, water supply and drainage plan on the first floor of building A, B, C combination (I) 9, A, B